indonesia, india, sri lanka, and thailand. >> in a moment, and the concrete wall was busted, and we were flushed out. and caught in debris, and the water was crazy. you were up, you were down, you were underneath swimming around with cars, refrigerators, furniture, fallen down trees and everything else. >> reporter: in all, nearly 233,000 people were killed, making it one of the deadliest natural disasters in history. but there are others even worse in the history books. march 27th, 1964, a 9.2 magnitude earthquake struck the prince william sound in alaska. the quake and ensuing tsunami took 128 lives and caused $311 million in damages along the gulf of alaska. towns were crushed, in some cases cracked into pieces.